Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The advent of September reveals an average high-temperature of a mild 15.8°C (60.4°F), showing minimal difference from the prior month. Throughout September, Clarecastle witnesses a nighttime temperature average of 9.4°C (48.9°F).Humidity
In Clarecastle, Ireland, the average relative humidity in September is 88%.Rainfall
September is the month with the least rainfall in Clarecastle. Rain falls for 13.2 days and accumulates 20mm (0.79") of precipitation.Snowfall
In Clarecastle, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 6:47 am and sunset at 8:24 pm. On the last day of September, in Clarecastle, sunrise is at 7:36 am and sunset at 7:14 pm IST.
Sunshine
The average sunshine in September in Clarecastle is 5.5h.UV index
The average daily maximum UV index in September in Clarecastle is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Clarecastle in September?
What is the average humidity in September in Clarecastle?
What is the driest month in Clarecastle?
How much does it rain in Clarecastle in September?
When it does not snow in Clarecastle?
What is the average length of the day in September in Clarecastle?
When is the sunrise / sunset in September in Clarecastle?
How long on average sun shines in September in Clarecastle?
How high is the UV index in September in Clarecastle?
Average temperature in September
Clarecastle, Ireland
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is August (11.2°C).
The coldest month (with the lowest average low temperature) is February (2.9°C).
Average pressure in September
Clarecastle, Ireland
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008.1mbar).
Average wind speed in September
Clarecastle, Ireland
- Average wind speed in September: 15.4km/h
The windiest month (with the highest average wind speed) is January (20.2km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in September
Clarecastle, Ireland
- Average humidity in September: 88%
The months with the highest relative humidity are November and December (89%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Clarecastle, Ireland
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is August (39mm).
The driest month (with the least rainfall) is September (20mm).
Average rainfall days in September
Clarecastle, Ireland
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Clarecastle, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Clarecastle, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Clarecastle, Ireland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 5h and 3min
The month with the most sunshine is June (Average sunshine: 7h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Clarecastle, Ireland
- Average sunshine days in September: 11 days
The month with the most sunshine days is December (13.9 days).
The month with the least sunshine days is August (5.9 days).
Average UV index in September
Clarecastle, Ireland
- Average UV index in September: 3
The months with the highest UV index are May and June (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Clarecastle, Ireland
- Average cloud cover in September: 62
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in September
Clarecastle, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (9km).
The months with the lowest visibility are July, August and September (8km).
